Spark-arrester for locomotives.



E. J. CARTER, A. TAYLOR 61 1. GRIFFITH L SPARK AHRESTEH FOR LOCOMOTIVES.APPLICATION FILED MAR. 18. 1915. RENEWED AUG. I8. l9ll.

Patented Oct. 23, 1917.

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. mmissfs Z a E1]. CARTER, A. TAYLOR & J. S. GRIFFITH.

SPARK ARRESTER FOR LOQOMOTIVES. APPLICATION FILED MAR. 18. ms. RENEWEDAUG. I8. I917.

Patented Oct. 23, 1917.

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UNITED STATES PATENT OFFICE.

nnniA J. CARTER, ALBERT TAYLOR, AND JAMES s. GRI FITH, or MOIBRIDGE,scorn:

DAKOTA.

SPARK-ARRESTER Specification of Letters Patent.

FOR LOCOMOTIVES.

Patented Oct. 23,. 191f1.

Application filed March 18, 1915', Serial No. 15,157. Renewed August 18,1917. Serial No. 186,'9 18.

To allwhom it may concern:

Bait, known that we, ELDIA J. CARTER, ALBERT TAYLOR, and JAMES S.GRIFFITH, citizens of the United States, residing at Mbbridge, in thecounty of Walworth and.

State of South Dakota, have invented certain new and useful Improvementsin Spark- Arresters for Locomotives; and we do hereby'decla-re thefollowing to be a full, clear,

and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

Our invention relates to locomotives and 16 has for its object toprovide an improved spark arresteror destroyer therefor; and, generallystated, the invention consists of the noveldevices and combinations ofdethe claims. a

-It is, of course, a well known fact that.

vices'herein'after described and defined ing way by sparks emitted fromthe smoke stacks of locomotives. Various spark arcollecting the sparkswithin the smoke box' of the locomotive but such devices have hithertobeen inefiicient to stop all' of the sparks or have been subject to aserious de feet, that they 1. would interfere with the draft of thelocomotive. -Ourinvention provides a spark-arrester which does notinterfere with the draft of the locomotive andthe chief function. ofwhich is to break up theredhot sparks lnto suchfine form that they willalmost instantly, either burn entirely up, or be. cooled aridextinguished, so that they will not start fires after they have beendeposited along the right-o'f-way.

'Theinvention, in its preferred form, 18 illustrated in the accompanyingdrawings wherein like characters indicate like parts throu houttheseveral views. I

erring to the drawings:

1, re 1 s a longitudinal section' 'taken centrally through the smokestack and'a pore.

tion of the boiler ofa locomotive, -and illuse ti-ating our inventionapplied in connection withithe smokestack-and -exhaust mom-1a n-1g: fi'is an enlarged; verticaliseotion taken approximafiely on the line s e-m 1 on Figvlz Fig. 3 is a section taken approximately on the line w mon Fig. 2;

Fig. 4 is a transverse vertical section taken on the line .90 m on Fig.1;

Fig. 5 is a horizontal section taken on the line 92 v on Fig. 1; and

Fig. 6 is a horizontal section taken on the line w m on Fig. 1 lookingupward.

Of the parts of the locomotive, the nu meral 1 indicates the boiler, thenumeral 2 the smoke box, the numeral 3 the fines, the numeral 4: thesteam pipe, the numeral 5 the exhaust nozzle or exhaust nozzle stand,the numeral 6 the smoke stack and the numeral 7 the deflecting plate,all ofwhich parts are of standard or well known construction;

In the application of our invention, the lower section 6' of the smokestack is made or provided with a downwardly flaring conical lower endportion 6*, and a conical plate nor center cone 8 is suitably secured ina poma'ny firesare started along the right-o sition concentric to thesaid flaring end 6*,

5, being,

which the exhaust from the said nozzle may freely pass upward. As shown,the said cone 8 is attached to the nozzle by means of small anglebrackets 9 and cooperating rivets or bolts, and preferably, the saidcone is made up of several overlapped segments, which, at their outeredge portions aresecured'together with freedom for circumferentialexpansion and contraction, by means of bolt and slotconnections 10..-The outer of the said bolts 10 are relativelylong and reach 'fromthesectional cone 8 tothe conical lower end .6 of the stack, and areanchored to the said part 6 so that they assist in properly spacing-thesaid parts'8 and 6 The said cone 8 and conical lower end 6 of the stackare thus spaced apart, so that they afiord a'converging annular orconical smokepassage .11; The numeral 12 indicatesso-called strikinqpins which are preferablyof -iron. or stee and rectangular incross=section, and provided, each, at one -:and is preferably secureddirectly to the upper end of the exhaust nozzle 25 resters have beenprovided for stopping org i iof course, provided with a passage throughend, with. a-reduced threaded. trunnion v13 ion the interior of thestack section 6,, to its flaring lower end portion 6 and. to the cone orconical plate 8. Their trunnions13 are passcd through perforations inthe said parts to which theam applied with the washers 14 and 15clamping the said parts to which they are applied, when the sai nuts 16are tightened. It will be noted hat the said striking .pins are set sothat they incline slightly'downwardaiitlradiate in ii'esp'ect to theaxis of the stack. Here itshould be noted that the striking pins 12 thatare within. the stack-section 6' terminate short of the axis of thestack far enough to leave an unobstructed central or axial-passage 'forthe exhaust from the exhaustnozzle. The said striking pins of theseveral vertically spaced horizontal series are staggered in respect toeach other, preferably as illustrated in Fig. 2, so that the sparkspassing upward between the same will strike in succession against thevertically spaced rows of pins. The striking pins that are applied tothe conical portions 6' and 8 are staggered in respect to each other, sothat the sparks which are drawn upward into the smoke stack, Will becaused'to strike over and over again against the said pins and willmostly be disintegrated and broken up before they are carried into thestack proper. Thus, those reaching the stack will he further caused tostrike against the pins in the lower stack section 6 so that by the timethey have passed out ofthe' stack, they will-be puiverized or broken upto such an extent that they will be either burned or cooled so that theywill not start fires along the right-0t way. It is well known that whena coal or sparkis violently thrust against a hard surface, it will besplit up into such' fine par ticles that fire will be immediately putout, and where this does not happen, that the small broken particleswill very quickly cool in passing-through the'air, and'thus theirability-to start fires is destroyed. Some of the broken vsparks orcinders may fall to the bottom of the smoke box, but these, of course,rnay be readily removed.

The numeral 17 indicates washout I pipes which :extend" -fromthe boilerforward, throngh or slightly under. Athedeflecting plate 7, andterminate at their front ends below the flaring lower end of the stack,sothat the discharge therefrom willbe' efl'ective to wash out the smokebox. llhe downwar dinclination of thes-triking pins toward the axis ofthe stack, ahasfavtendehcy to cause the sparks to be deflected 3radially Joutward-and to keep :the; same. away frem the devicedescribedis-eificient for '.the purposes had' in view and may: be"readily unobstructed axialeexhaust passage of the at eomparativielysfnallcost.

appliedg'eithei to new or to=old locomotives,

What we claim is: The combination fwiith: a!" snicke box, smoke stackand exhaust nozzle of a locomotive, said 'smoke stack having a down-Wardly flaring lower end within said sihoke box and around the upperendof said exhaust nozzle, of a conical pin support surrounding the upperend of said exhaust noz- 'zle and having an axial exhaust passage alinedwith that of the said nozzle, '"the sa-id conical pin support beingspaced from the flaring lower end of said stack to form an upwardlyconverging annular smokerpassage leading to the stack, and striking pinsse cured, at one end, to the {said stack and: to said conical pinsupport, with theinfree ends projecting into the smoke passage, and thefree ends of the pins on the interior of said stack terminating short ofthe axis thereof, so as to leave an unobstructed axial exhaust passagefrom the said exhaust nozzle. upward through the said stack.

2. The combination with a smoke box, smoke stack and exhaust nozzle of aloco motive, said smoke stack having a downwardly flaring lower endwithin said smoke box-and around the upper end of said exhaust nozzle,of a conical pin supporhjsur roundihgthe upper end-of said exhaustnoz;zle and. having an-axial exhaust passage alined with that of the saidnozzle, the said conical pin support being spaced f ,1 oin-the flaringlower end of said stack to form, ian upwardly converging annularsmoke:passage leading to the stack, and striking pins 86- cured, at=one end,to the saidstack and to said conical pin support, with their free endsprojecting into the smoke-passage, the free ends ofthe-pins on theinte-rior of said stack terminating short of theaxis thereof, so as toleave an unobstructedaxiallexhaust passage from the said exhaust nozzle,upward through the sai-d'stack,.-and,:t11epins onxthebody of the stackhaving aminward and .downw ardxincline so as to dQfl q the sparksoutward from the, axis of thenstacki :3. The combination: with v a,-smoke-box, smoke stack and exhaust'nozzle of er; locomotive, said smokestack having a down: wardly-fiaring lower end withinafiei Smoke box andaround the-lupper end of- ,sai d exwj.

haust nozzle, of a conical pinsuppont snr rounding the upper end ofsaidfiKhaust-fiozzlerand ihajvin g an axial exhaust-passage alined withthat of the said nozzle, tghfigSfllld conical pin support-beingspaceddwornstlre flaring lower end-of saidistack to= form lan 1projecting intothel-smoke. passage, and-{the free ends thepinsxoatheuimteripr ofilsiid stack termlna'tlng :short ot theza lfifihQIE-Qfiifs so as to leave an unobstructed axial exihaals't j passagefromtthe said exhaust nozzle upward'through the said stack, all of thatportion ofthe said stack which is above said smoke box being entirelyfree from obstructions.

" 4. The combination with a smoke box,-

smoke stack and exhaustnozzle of a locomotive, said smoke stack having adownwardly flaringlower end within said smoke box and e zle,

around the u Y the upperend of said exhaust nozzle and having an axialexhaust passage aliued with that of the said nozzle, the said conicalpin support being spaced from'the flaring lower end of said stack toform an upwardly converging annular smoke passage leadingto Y the stack,and striking pins secured, at one end, to the said stack and to saidconical 9,

pin su port, with their free ends projectin intoft e smoke passage, andthe free en s of the pins on the interior of said stack terminatingshort of the axis thereof, so as f to leave an unobstructed axialexhaust pas- I 25 copies or thiltradeper end of said exhaust noz-' of aconical pin support surrounding mark may he obtained for five centseach,

Washington, D. 0.

flaring lower end withinvsaid smoke bead around the'upper end of saidexhaust nozof a conical. pin support surrounding the upper end of saidexhaust nozzle and having an axialqexhaust passage alined with a thesaid conical pin spaced fromthefiari'n'g lower that of the said nozzle,support being end of said stack to form an upwardly "converging annularsmoke passage. leading to the stack, and striking pins secured, at oneend, to the said stack andito said conical pin support, with their freeendsprojecting' into the smoke passage, and the free ends of the pins'on the interior of said stack terminating to leave an unobstructedaxial exhaust 'pas sage from-the said exhaust, nozzleu ward through thesaid stack, and a de ecting plate on the extendingforward and downwardto a point below the said flaring lower end of the stack and the lowerportion of said conical pin support. v i a a In testimony whereof weailix our signatures in presence of two witnesses.

ELDIA J. CARTER;

ALBERT TAYLOR. :1

Witnesses:

Osoxa A. OLsoN, W. F. MAILAND.

by addressing the Commissioner of Iatente',

short-of the axis thereof, so as Y r 5Y0 flue sheet side of thesmoke boxJAMES s. GRIFFI H]

